Periosteal elevator with a tissue combing and pulling structure

ABSTRACT

A periosteal elevator with a tissue combing and pulling structure comprising a bar, a combing and pulling base, and a plurality of combing and pulling structures is provided. The bar has a holder and a connection part, wherein the holder is utilized for being held by an operation executer, and the connection part is connected to the holder. 
     The combing and pulling base is fixed to the connection part and has a base outer edge part. The combing and pulling structures are protruded opposite to the bar from the base outer edge part, for combing and pulling a subcutaneous fibrous tissue when the subcutaneous fibrous tissue is cut and elevated from an alveolar bone.

This application claims the benefit of Taiwan Patent Application Serial No. 107202064, filed Feb. 9, 2018, the subject matter of which is incorporated herein by reference.

BACKGROUND OF INVENTION 1. Field of the Invention

The present invention is related to a periosteal elevator, and more particularly is related to a periosteal elevator having a tissue combing and pulling structure.

2. Description of the Prior Art

Attending with the progress of medical technology, people are more and more relying on medicine. The progress of medical technology also transforms some impossible treatment into possible, such as teeth shaping and full mouth dental implant.

In 1955, Swedish orthopedic surgeon Dr. Per-Ingvar Branemark was conducting research regarding the healing of injured bone, and as a part of the research, Dr. Branemark discovered that titanium shows excellent biocompatibility to the bone and the soft tissue and can be firmly attached to the human body. Thus, Dr. Branemark was working with oral surgeons to do the first dental implant in 1965, which brings a significant breakthrough to medical technologies, especially dental technologies and derives the modern dental implant technology.

Please refer to FIG. 1 and FIG. 2, wherein FIG. 1 is a cross-sectional schematic view showing the wound before placing the implant into of the alveolar bone by using the conventional technology; and FIG. 2 is a cross-sectional schematic view showing the wound after placing the implant into the alveolar bone and filling the wound with bone powder by using the conventional technology.

The wound indicates the necessary cut for doing the surgery. As shown, when a dental implant surgery is needed, the tooth grown on the alveolar bone PA21 must be missed, which may fall out naturally or be removed from the socket manually. Then, the original socket would be recovered through osteoblast growth to heal the wound, however, the condition of alveolar bone PA21 and gingival recession would be caused thereby. Thus, the implant placement surgery of placing the implant PA3 into the alveolar bone PA21 is a part of the dental implant surgery. The dentist may cut the subcutaneous fibrous tissues PA22 a and PA22 b by using a scalpel or other cutting tools, and use the conventional periosteal elevator PA1 to separate the subcutaneous fibrous tissues PA22 a and PA22 b covering the alveolar bone PA21 from the alveolar bone PA21.

The subcutaneous fibrous tissues PA22 a and PA22 b include the periostea PA221 a and PA221 b respectively. When the dentist cuts the subcutaneous fibrous tissues PA22 a and PA22 b and elevates the subcutaneous fibrous tissues PA22 a and PA22 b from the alveolar bone PA21, the periostea PA221 a and PA221 b are also elevated from the alveolar bone PA21 together with the subcutaneous fibrous tissues PA22 a and PA22 b to expose the alveolar bone PA21. Then, the dentist may place an implant PA3 into the alveolar bone PA21 and fill some bone powder in the alveolar bone PA21 to support the recessed alveolar bone PA21 and gingival. The technology of placing the implant PA3 into the alveolar bone PA21 is quite common and thus is not repeated here.

After completing the above mentioned operations, the dentist needs to stitch the elevated subcutaneous fibrous tissues PA22 a and PA22 b. However, because of the bone powder PA4 added in the alveolar bone PA21 surrounding the implant PA3, the wound would be protruded in compared with the condition before the implant placement surgery such that it would be difficult for the dentist to stitch the subcutaneous fibrous tissues PA22 a and PA22 b without any treatment.

Please also refer to FIG. 3 and FIG. 3A, wherein FIG. 3 is a cross-sectional schematic view showing the wound of the subcutaneous fibrous tissues with the cut in accordance with the conventional technology; and FIG. 3A is a perspective schematic view showing the wound of the subcutaneous fibrous tissues with the cut in accordance with the conventional technology. As shown, in order to have the subcutaneous fibrous tissues PA22 a and PA22 b perfectly stitched, the dentist may use a cutting tool such as the scalpel to form a plurality of cuts at the internal surface of the subcutaneous fibrous tissues PA22 a and PA22 b (four cuts are shown in the figure as an example and only two of them, PA220 a and PA220 b, are labelled). The cuts PA220 a and PA220 b are perpendicular to the fiber of the subcutaneous fibrous tissues PA22 a and PA22 b, that is, the cuts PA220 a and PA220 b would break the subcutaneous fibers 1.

Please refer to FIG. 4, which is a cross-sectional schematic view showing the wound after being stitched in accordance with the conventional technology. As shown, after forming a plurality of cuts PA220 a and PA220 b at the internal surface of the subcutaneous fibrous tissues PA22 a and PA22 b, the subcutaneous fibrous tissues PA22 a and PA22 b can be stretched to the length required for stitching, and then the suture PA5 is used to hold the subcutaneous fibrous tissues PA22 a and PA22 b together to finish the implant placement surgery.

As mentioned, after placing the implant PA3 into the alveolar bone PA21, a plurality of cuts PA220 a and PA220 b should be formed at the internal surface of the subcutaneous fibrous tissues PA22 a and PA22 b such that the subcutaneous fibrous tissues PA22 a and PA22 b can be stretched and closed by using the suture PA5. The treatment is known as a commonly used stress relaxation suture technology. During the treatment, the periosteal elevator PA1 only has the function to separate the subcutaneous fibrous tissues PA22 a and PA22 b from the alveolar bone PA21 such that the dentist needs to change the tools to continue the stress relaxation suture process. In addition, the stress relaxation suture extends the stretchable length of the subcutaneous fibrous tissues PA22 a and PA22 b by cutting the subcutaneous fibers thereof. However, cutting the subcutaneous fibers may cause bleeding. Moreover, the number of the cuts PA220 a and PA220 b and the depth thereof may be increased based on the length to be stretched. The above mentioned conditions may cause additional wound inside the subcutaneous fibrous tissues PA22 a and PA22 b, and the cuts PA220 a and PA220 b may hurt the underlying dermis (not shown in the figure) to cause swelling or infection and further extend the post-operative recovery time period.

SUMMARY OF THE INVENTION

Since the conventional technology, i.e. the stress relaxation suture technology, which increases the stretchable length of the subcutaneous fibrous tissue by cutting the subcutaneous fibers, may cause the problem of swelling and infection, and the conventional periosteal elevator lacks the function of assisting the operation of stress relaxation suture, it is a main object of the present invention to provide a periosteal elevator with a tissue combing and pulling structure, which is capable of combing and pulling the subcutaneous fibers to increase the stretchable length of the subcutaneous fibrous tissue.

In order to resolve the problems of the conventional technology, a periosteal elevator with a tissue combing and pulling structure comprising a bar, a combing and pulling base, and a plurality of combing and pulling structures is provided in the present invention.

The bar has a holder and a connection part, wherein the holder is utilized for being held by an operation executer, and the connection part is connected to the holder. The combing and pulling base is fixed to the connection part and has a base outer edge part. The combing and pulling structures are protruded opposite to the bar from the base outer edge part, for combing and pulling a subcutaneous fibrous tissue when the subcutaneous fibrous tissue is cut and elevated from an alveolar bone.

In accordance with an embodiment of the present invention, the combing and pulling base of the periosteal elevator having a tissue combing and pulling structure is a spoon-shaped base.

In accordance with an embodiment of the present invention, the combing and pulling base of the periosteal elevator having a tissue combing and pulling structure has a base trench.

In accordance with an embodiment of the present invention, the base outer edge part of the periosteal elevator having a tissue combing and pulling structure is a curved outer edge part.

In accordance with an embodiment of the present invention, the combing and pulling base of the periosteal elevator having a tissue combing and pulling structure is a plate-shaped base.

In accordance with an embodiment of the present invention, the base outer edge part of the periosteal elevator having a tissue combing and pulling structure comprises a straight outer edge part.

In accordance with an embodiment of the present invention, the combing and pulling structure of the periosteal elevator having a tissue combing and pulling structure is extended along a protruding direction, the holder is extended along a first extending direction, and the protruding direction is substantially parallel to the first extending direction.

In accordance with an embodiment of the present invention, the combing and pulling structure of the periosteal elevator having a tissue combing and pulling structure is extended along a protruding direction, the holder is extended along a first extending direction, an included angle is formed between the protruding direction and the first extending direction, and the included angle is ranged between 10 degrees to 90 degrees.

In accordance with an embodiment of the present invention, the combing and pulling structures of the periosteal elevator having a tissue combing and pulling structure linearly aligned at the base outer edge part.

In accordance with an embodiment of the present invention, the combing and pulling structures of the periosteal elevator having a tissue combing and pulling structure are equally spaced.

In accordance with an embodiment of the present invention, the combing and pulling structure of the periosteal elevator having a tissue combing and pulling structure is protruded a protruding length from the base outer edge part, and the protruding length is ranged between 0.5 mm to 1.5 mm.

In accordance with an embodiment of the present invention, the holder of the periosteal elevator having a tissue combing and pulling structure is extended along a first extending direction, the connection part is extended along a second extending direction, and the first extending direction is substantially parallel to the second extending direction.

In accordance with an embodiment of the present invention, the holder of the periosteal elevator having a tissue combing and pulling structure is extended along a first extending direction, the connection part is extended along a second extending direction, and the first extending direction is substantially perpendicular to the second extending direction.

In accordance with an embodiment of the present invention, the connection part of the periosteal elevator having a tissue combing and pulling structure has an extending section and a bended section, the extending section is extended along a second extending direction, the bended section is extended along a bended direction, and the bended direction is substantially perpendicular to the second extending direction.

In accordance with an embodiment of the present invention, the holder of the periosteal elevator having a tissue combing and pulling structure is extended along a first extending direction, and the first extending direction is substantially parallel to the second extending direction.

In accordance with an embodiment of the present invention, the bar of the periosteal elevator having a tissue combing and pulling structure further comprises an expanded connection part, and the expanded connection part is connected to an end of the holder opposite to the connection part.

In accordance with an embodiment of the periosteal elevator having a tissue combing and pulling structure of the present invention, the periosteal elevator having a tissue combing and pulling structure further comprises an expanded combing and pulling base and a plurality of expanded combing and pulling structures. The expanded combing and pulling base is fixed to the expanded connection part and has an expanded base outer edge part, and the expanded combing and pulling structures is protruded from the expanded base outer edge part for combing and pulling the subcutaneous fibrous tissue.

As mentioned above, the periosteal elevator with a tissue combing and pulling structure provided in the present invention features the combing and pulling structures for combing and pulling the subcutaneous fibrous tissue when the subcutaneous fibrous tissue is cut and elevated from the periosteum. In compared with the conventional technology, the present invention is helpful for doing stress relaxation suture without forming the cuts, such that the risk of swelling and infection can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will now be specified with reference to its preferred embodiment illustrated in the drawings, in which:

FIG. 1 is a cross-sectional schematic view showing the wound before placing the implant into of the alveolar bone by using the conventional technology;

FIG. 2 is a cross-sectional schematic view showing the wound after placing the implant into the alveolar bone and filling the wound with bone powder by using the conventional technology;

FIG. 3 is a cross-sectional schematic view showing the wound of the subcutaneous fibrous tissues with the cut in accordance with the conventional technology;

FIG. 3A is a perspective schematic view showing the wound of the subcutaneous fibrous tissues with the cut in accordance with the conventional technology;

FIG. 4 is a cross-sectional schematic view showing the wound after being stitched in accordance with the conventional technology;

FIG. 5 is a perspective view showing a periosteal elevator having a tissue combing and pulling structure provided in accordance with a first embodiment of the present invention;

FIG. 5A is an enlarged view showing the region A of FIG. 5;

FIG. 6 is a perspective view showing the periosteal elevator having a tissue combing and pulling structure provided in accordance with the first embodiment of the present invention from a different viewing angle;

FIG. 6A is an enlarged view showing the region B of FIG. 6;

FIG. 7 is a cross-sectional schematic view showing the operation of combing and pulling the subcutaneous fibrous tissues by using the periosteal elevator having a tissue combing and pulling structure in accordance with the first embodiment of the present invention after the implant is placed into the alveolar bone;

FIG. 7A is a perspective schematic view showing the operation of combing and pulling the subcutaneous fibrous tissues by using the periosteal elevator having a tissue combing and pulling structure in accordance with the first embodiment of the present invention;

FIG. 8 is a cross-sectional schematic view showing the wound after the subcutaneous fibrous tissues are combed and pulled by using the periosteal elevator having a tissue combing and pulling structure in accordance with the first embodiment of the present invention;

FIG. 9 is a cross-sectional schematic view showing the wound after the subcutaneous fibrous tissues are combed and pulled by using the periosteal elevator having a tissue combing and pulling structure in accordance with the first embodiment of the present invention is stitched;

FIG. 10 is a perspective view showing a periosteal elevator having a tissue combing and pulling structure provided in accordance with a second embodiment of the present invention;

FIG. 11 is a front view of the periosteal elevator having a tissue combing and pulling structure provided in accordance with the second embodiment of the present invention;

FIG. 11A is an enlarged view showing the region C of FIG. 11;

FIG. 12 is a side view of the periosteal elevator having a tissue combing and pulling structure provided in accordance with the second embodiment of the present invention;

FIG. 13 is a perspective view showing a periosteal elevator having a tissue combing and pulling structure provided in accordance with a third embodiment of the present invention;

FIG. 14 is a front view of the periosteal elevator having a tissue combing and pulling structure provided in accordance with the third embodiment of the present invention;

FIG. 14A is an enlarged view showing the region D of FIG. 14;

FIG. 15 is a perspective view showing a periosteal elevator having a tissue combing and pulling structure provided in accordance with a fourth embodiment of the present invention;

FIG. 16 is a front view of the periosteal elevator having a tissue combing and pulling structure provided in accordance with the fourth embodiment of the present invention; and

FIG. 16A is an enlarged view showing the region E of FIG. 16.

DESCRIPTION OF THE PREFERRED EMBODIMENT

The specific structural and functional details disclosed herein are only representative and are intended for describing exemplary embodiments of the disclosure. It is noted that, in the disclosure, similar elements would be represented by the same labels. Moreover, the drawings are for the purpose of illustration. The drawings may not be drawn based on precise proportions, and the drawing may not contain all the details.

Please refer to FIG. 5 and FIG. 5A, wherein FIG. 5 is a perspective view showing a periosteal elevator having a tissue combing and pulling structure provided in accordance with a first embodiment of the present invention, and FIG. 5A is an enlarged view showing the region A of FIG. 5. As shown, the periosteal elevator having a tissue combing and pulling structure 1 provided in accordance with the first embodiment of the present invention comprises a bar 11, a combing and pulling base 12, a plurality of combing and pulling structures 13 (only one of them is labelled), an expanded combing and pulling base 14, and a plurality of expanded combing and pulling structures 15 (only one of them is labelled).

The bar 11 has a holder 111, a connection part 112, and an expanded connection part 113. The holder 111 is utilized for being held by an operation executer. The operation executer is usually a dentist, which is used in the following paragraphs as an example. One end of the holder 111 is connected to the connection part 112 and the other end is connected to the expanded connection part 113. The holder 111 can be made of slip-resistant materials such as rubber, to prevent the precision of the operation from being affected by the wet holder due to the moisture from the mouth of the patient dentist, the blood or saliva on the gloves of the dentist. The bar 11 can be of a shape of a cylinder, a prism, or a combination thereof, but a certain length is needed to facilitate the operation of combing and pulling the subcutaneous fibers at different locations in the mouth.

The combing and pulling base 12 is fixed to the connection part 112 of the bar 11. In the present embodiment, the combing and pulling base 12 is a spoon-shaped base having a base trench 121. The combing and pulling structure 13 is connected to a side of the combing and pulling base 12 opposite to the bar 11. The combing and pulling structure 13 can be of two-dimensional tooth shaped, three-dimensional tooth shaped, comb shaped, cylinder shaped. In the present embodiment, the combing and pulling structure is of three-dimensional tooth shaped. The expanded combing and pulling base 14 is fixed to the expanded connection part 113. The expanded combing and pulling structure 15 is protruded from the expanded combing and pulling base 14.

Please refer to FIG. 6 and FIG. 6A, wherein FIG. 6 is a perspective view showing the periosteal elevator having a tissue combing and pulling structure provided in accordance with the first embodiment of the present invention from a different viewing angle, and FIG. 6A is an enlarged view showing the region B of FIG. 6.

As shown, the holder 111 is extended along a first extending direction D1, the connection part 112 is extended along a second extending direction D2, and the combing and pulling structure 13 is protruded along a protruding direction D3. In detail, the combing and pulling base 12 has a base outer edge part 122, the combing and pulling structure 13 is protruded from the base outer edge part 122 along the protruding direction D3 integrally. In the present embodiment, the base outer edge part 122 is a curved outer edge part. In addition, the combing and pulling base 12 has a base width W. Considering the size of the actual surgical wound, the base width W is ranged between 3 mm to 15 mm to prevent additional hurts to the subcutaneous fibers.

The expanded combing and pulling base 14 and the expanded combing and pulling structure 15 are identical to the combing and pulling base 12 and the combing and pulling structure 13 respectively. The expanded combing and pulling base 14 has an expanded base outer edge part (not labelled in the figure due to drawing limitations, but has a relationship to the expanded combing and pulling base 14 identical to that between the base outer edge part 122 and the combing and pulling base 12, i.e. located at the outer edge of the expanded combing and pulling base 14). The expanded combing and pulling structure 15 is protruded from the expanded base outer edge part of the expanded combing and pulling base 14.

The expanded combing and pulling base 14 has an expanded base width, which is smaller than the base width W. Thus, in compared with the combing and pulling range of the combing and pulling structure 13, the expanded combing and pulling structure 15 has a smaller combing and pulling range, and thus the dentist may choose the combing and pulling structure 13 or the expanded combing and pulling structure 15 to do the combing and pulling operation based on the variation of conditions.

Then, please refer to FIG. 5 to FIG. 9, wherein FIG. 7 is a cross-sectional schematic view showing the operation of combing and pulling the subcutaneous fibrous tissues by using the periosteal elevator having a tissue combing and pulling structure in accordance with the first embodiment of the present invention after the implant is placed into the alveolar bone; FIG. 7A is a perspective schematic view showing the operation of combing and pulling the subcutaneous fibrous tissues by using the periosteal elevator having a tissue combing and pulling structure in accordance with the first embodiment of the present invention; FIG. 8 is a cross-sectional schematic view showing the wound after the subcutaneous fibrous tissues are combed and pulled by using the periosteal elevator having a tissue combing and pulling structure in accordance with the first embodiment of the present invention; and FIG. 9 is a cross-sectional schematic view showing the wound after the subcutaneous fibrous tissues are combed and pulled by using the periosteal elevator having a tissue combing and pulling structure in accordance with the first embodiment of the present invention is stitched.

As shown in FIG. 7, the dentist has placed an implant 3 into an alveolar bone 22 and deposited bone powder 4 to complete preparation for the following stitching operations. The dentist uses the periosteal elevator having a combing and pulling structure 1 to do the combing and pulling operations to the subcutaneous fibrous tissues 21 a and 21 b.

The subcutaneous fibrous tissue 21 a includes a periosteum 211 a and a muscle fiber 212 a, and similarly, the subcutaneous fibrous tissue 21 b includes a periosteum 211 b and a muscle fiber 212 b. As shown in FIG. 7A, the dentist uses a blade structure (not shown) to form a cut G on the periosteum 211 b, and uses the combing and pulling structure 13 to comb the muscle fiber 212 b along a fibre direction V and pull the muscle fiber 212 b at the same time. Because the muscle fiber 212 b is connected to the periosteum 211 b as well as the dermis (not shown), the periosteum 211 b and the dermis would be stretched together with the muscle fiber 212 b. The process of combing and pulling the muscle fiber 212 b may encounter the tendon (not shown) unparallel to the fiber direction V. At this time, the dentist may use the sharp portion of the combing and pulling structure 13 to cut the thinner tendon to facilitate the following combing and pulling operation. But the present invention is not limited thereto. The dentist may use the combing and pulling structure 13 to comb and pull the periosteum 211 b directly.

Whether which combing and pulling operation mentioned above is used, the combing and pulling structure 13 is capable to comb and pull the subcutaneous fibrous tissues 21 a and 21 b effectively. In the figure, only the subcutaneous fibrous tissue 21 b is combed and pulled, but it is noted that the operation can also be used to comb and pull the subcutaneous fibrous tissue 21 a, or to comb and pull the subcutaneous fibrous tissues 21 a and 21 b, and only a small amount of the subcutaneous fibrous tissues 21 a and 21 b would be damaged. Thus, in compared with the conventional technology, which needs to form a plurality of cuts PA220 a and PA220 b on the internal surface of the subcutaneous fibrous tissues PA22 a and PA22 b, the present invention only has minor bleeding without causing too much influence to the wound and post-operative recovery time period.

As shown in FIG. 8, after the subcutaneous fibrous tissues 21 b is combed and pulled by the periosteal elevator having a tissue combing and pulling structure 1, the length is increased significantly, and thus the subcutaneous fibrous tissue is labelled by 21 b 1 to differentiate the two conditions. In detail, because the muscle fiber 212 b is combed and pulled as the muscle fiber 212 b 1, the periosteum 211 b would be also stretched as the periosteum 211 b 1. Thus, the subcutaneous fibrous tissue 21 b comprising the muscle fiber 212 b and the periosteum 211 b would be also stretched as the subcutaneous fibrous tissue 21 b 1.

After using the periosteal elevator having a combing and pulling structure 1 to comb and pull the subcutaneous fibrous tissue 21 b as the subcutaneous fibrous tissue 21 b 1, the dentist may further comb and pull the subcutaneous fibrous tissue 21 a as the subcutaneous fibrous tissue 21 a 1. Thereby, the subcutaneous fibrous tissues 21 a 1 and 21 b 1 at the two sides of the wound can be closed even if the implant 3 is placed into the alveolar bone 22 and the bone powder 4 is filled therein. Then, as shown in FIG. 9, the dentist may use a suture 5 to stitch the combed and pulled subcutaneous fibrous tissues 21 a 1 and 21 b 1 easily.

In addition, when the dentist separate the subcutaneous fibrous tissues 21 a and 21 b above the alveolar bone 22, the dentist may use the combing and pulling structure 13 and the combing and pulling base 12 to pull up the subcutaneous fibrous tissues 21 a and 21 b so as to expose the alveolar bone 22 for the dentist to place the implant 3 into the alveolar bone 22. After placing the implant 3, the dentist may use the base trench 121 to load the bone powder 4 and have the bone powder 4 filled in the alveolar bone 22 and the implant 3. Thus, by using the periosteal elevator having a combing and pulling structure 1 provided in the present invention, which is capable to perform multiple functions, the dentist does not need to change the surgical instruments frequently, such that the operation would be more convenient and the operation time can be shortened.

The aforementioned combing and pulling operation executed by the combing and pulling structure 13 can also be executed by the expanded combing and pulling base 14.

Please refer to FIG. 10, which is a perspective view showing a periosteal elevator having a tissue combing and pulling structure provided in accordance with a second embodiment of the present invention. As shown, the periosteal elevator having a tissue combing and pulling structure 1 a comprises a bar 11 a, a combing and pulling base 12 a, a plurality of combing and pulling structure 13 a (only one of them is labelled), an expanded combing and pulling base 14 a, and a plurality of expanded combing and pulling structures 15 a (only one of them is labelled).

The bar 11 a has a holder 111 a, a connection part 112 a, and an expanded connection part 113 a. The holder 111 a is utilized for being held by the dentist. One end of the holder 111 a is connected to the connection part 112 a and the other end is connected to the expanded connection part 113 a. The holder 111 a can be made of slip-resistant materials such as rubber, to prevent the precision of the operation from being affected by the wet holder due to the moisture from the mouth of the patient dentist, the blood or saliva on the gloves of the dentist. The bar 11 a can be of a shape of a cylinder, a prism, or a combination thereof, but a certain length is needed to facilitate the operation of combing and pulling the subcutaneous fibers at different locations in the mouth.

The combing and pulling base 12 a is fixed to the connection part 112 a of the bar 11 a. In the present embodiment, the combing and pulling base 12 a is a plate-shaped base. The combing and pulling structure 13 a is connected to a side of the combing and pulling base 12 a opposite to the bar 11 a. The expanded combing and pulling base 14 a is fixed to the expanded connection part 113 a. The expanded combing and pulling structure 15 a is protruded from the expanded combing and pulling base 14 a.

In detail, the expanded connection part 113 a has an expanded extending section 1131 a and an expanded bended section 1132 a. The expanded extending section 1131 a is connected to the holder 111 a, and the expanded bended section 1132 a is connected to the expanded extending section 1131 a. The expanded combing and pulling base 14 a is fixed to the expanded bended section 1132 a. The expanded extending section 1131 a and the expanded bended section 1132 a have an included angle.

Please refer to FIG. 10, FIG. 11, FIG. 11A and FIG. 12, wherein FIG. 11 is a front view of the periosteal elevator having a tissue combing and pulling structure provided in accordance with the second embodiment of the present invention; FIG. 11A is an enlarged view showing the region C of FIG. 11; and FIG. 12 is a side view of the periosteal elevator having a tissue combing and pulling structure provided in accordance with the second embodiment of the present invention. As shown, the holder 111 a is extended along a first extending direction D1 a, the connection part 112 a is extended along a second extending direction D2 a, and the combing and pulling structure 13 a is protruded along a protruding direction D3 a. In the present embodiment, the first extending direction D1 a, the second extending direction D2 a, and the protruding direction D3 a are parallel to each other.

In the present embodiment, the combing and pulling base 12 a has a base outer edge part 122 a, and the base outer edge part 122 a comprises a straight outer edge part. The base outer edge part 122 a can be the straight outer edge part as a whole, or have a large portion thereof as the straight outer edge part and two chamfers at the two ends to prevent the damage to the patient caused by the sharp structure. In addition, the combing and pulling base 12 a has a base width Wa. Considering the size of the actual surgical wound, the base width W is ranged between 3 mm to 15 mm to prevent additional hurts to the subcutaneous fibers. Generally, the base width Wa is greater than the base width W. Thus, in compared with the first embodiment, the periosteal elevator having a tissue combing and pulling structure provided in the preset embodiment has a greater combing and pulling range.

The combing and pulling structure 13 a is protruded from the base outer edge part 122 a along the protruding direction D3 a by a protruding length H1. The combing and pulling structures 13 a are linearly aligned at the base outer edge part 122 a and equally spaced. Because the combing and pulling structure 13 a is utilized for combing and pulling the subcutaneous fibrous tissues 21 a and 21 b in FIG. 7 and FIG. 9, considering the thickness of the subcutaneous fibrous tissue, it is preferred to have a protruding length H1 ranged between 0.1 mm to 0.3 mm to show a better combing and pulling effect. The protruding length H1 is corresponding to the depth the combing and pulling operation applied to the subcutaneous fibrous tissues 21 a and 21 b. Thus, the periosteal elevator having a tissue combing and pulling structure 1 provided in the present invention would not cause the additional wound on the subcutaneous fibrous tissues 21 a and 21 b due to an over-length protruding length H1, and would prevent a bad combing and pulling result without reaching the deeper subcutaneous fibrous tissues 21 a and 21 b due to a too-short protruding length H1.

In the present embodiment, the combing and pulling structure 13 a is protruded from the combing and pulling base 12 a integrally, and the extending direction of the combing and pulling base 12 a is identical to the protruding direction D3 a. Thus, as shown in FIG. 11, in the present embodiment, the holder 111 a, the connection part 112 a, the combing and pulling structure 13 a, and the combing and pulling base 12 a have identical extending directions so that no included angle other than 0 degree would be caused. It can prevent the surgical space in the patient's mouth from being occupied due to the inclined angle.

The expanded combing and pulling base 14 a and the expanded combing and pulling structure 15 a are identical to the combing and pulling base 12 a and the combing and pulling structure 13 a respectively. The expanded combing and pulling base 14 a has an expanded base outer edge part (not labelled in the figure due to drawing limitations, but has a relationship to the expanded combing and pulling base 14 a identical to that between the base outer edge part 122 a and the combing and pulling base 12 a, i.e. located at the outer edge of the expanded combing and pulling base 14 a). The expanded combing and pulling structure 15 a is protruded from the expanded base outer edge part of the expanded combing and pulling base 14 a.

The expanded combing and pulling base 14 a has an expanded base width, which is smaller than the base width Wa. Thus, in compared with the combing and pulling range of the combing and pulling structure 13 a, the expanded combing and pulling structure 15 a has a smaller combing and pulling range, and thus the dentist may choose the combing and pulling structure 13 a or the expanded combing and pulling structure 15 a to do the combing and pulling operation based on the variation of conditions. In the present embodiment, the expanded extending section 1131 a and the expanded bended section 1132 a have an included angle, which is helpful for combing and pulling some specific regions which the combing and pulling structure 13 a cannot reach due to structural limitations.

The periosteal elevator having a tissue combing and pulling structure 1 a provided in the present embodiment can be used to replace the periosteal elevator having a tissue combing and pulling structure 1 used in FIG. 7 and FIG. 8 for doing the identical operations and also showing the function as shown in FIG. 9. The operations and the function are identical to the previous embodiment, and thus are not repeated here.

Please refer to FIG. 13 to FIG. 14A, wherein FIG. 13 is a perspective view showing a periosteal elevator having a tissue combing and pulling structure provided in accordance with a third embodiment of the present invention; FIG. 14 is a front view of the periosteal elevator having a tissue combing and pulling structure provided in accordance with the third embodiment of the present invention; and FIG. 14A is an enlarged view showing the region D of FIG. 14. As shown, the periosteal elevator having a tissue combing and pulling structure 1 b comprises a bar 11 b, a combing and pulling base 12 b, a plurality of combing and pulling structure 13 b (only one of them is labelled), an expanded combing and pulling base 14 b, and a plurality of expanded combing and pulling structures 15 b (only one of them is labelled).

The bar 11 b has a holder 111 b, a connection part 112 b, and an expanded connection part 113 b. The holder 111 b is utilized for being held by the dentist. One end of the holder 111 b is connected to the connection part 112 b and the other end is connected to the expanded connection part 113 b. The holder 111 b can be made of slip-resistant materials such as rubber, to prevent the precision of the operation from being affected by the wet holder due to the moisture from the mouth of the patient dentist, the blood or saliva on the gloves of the dentist. The bar 11 b can be of a shape of a cylinder, a prism, or a combination thereof, but a certain length is needed to facilitate the operation of combing and pulling the subcutaneous fibers at different locations in the mouth. The holder 111 b is extended along a first extending direction D1 b.

The combing and pulling base 12 b is fixed to the connection part 112 b of the bar 11 b and has a base outer edge pat 122 b. In the present embodiment, the combing and pulling base 12 b is a plate-shaped base. The base outer edge part 122 b comprises a straight outer edge part. The base outer edge part 122 b can be the straight outer edge part as a whole, or have a large portion thereof as the straight outer edge part and two chamfers at the two ends to prevent the damage to the patient caused by the sharp structure. The combing and pulling structure 13 b is connected to the base outer edge part 122 b, and is protruded from the base outer edge part 122 b along a protruding direction D3 b by a protruding length. Considering the thickness of the subcutaneous fibrous tissue, it is preferred to have a protruding length ranged between 0.5 mm to 1.5 mm. The expanded combing and pulling base 14 b is fixed to the expanded connection part 113 b. The expanded combing and pulling structure 15 b is protruded from the expanded combing and pulling base 14 b.

In the present embodiment, the connection part 112 b has an extending section 1121 b and a bended section 1122 b. The extending section 1121 b is extended along a second extending direction D2 b, and the bended section 1122 b is extended along a bended direction D4 b. The second extending direction D2 b is parallel to the first extending direction D1 b. The bended direction D4 b is substantially perpendicular to the second extending direction D2 b. It is noted that the term substantially perpendicular indicates the condition of roughly perpendicular and a small angular error is allowable. For example, the bended direction D4 b and the second extending direction D2 b may have an included angle of 89 degrees. In addition, the protruding direction D3 b is parallel to the bended direction D4 b.

The expanded connection part 113 b has an expanded extending section 1131 b and an expanded bended section 1132 b. The expanded extending section 1131 b is connected to the holder 111 b, and the expanded bended section 1132 b is connected to the expanded extending section 1131 b. The expanded combing and pulling base 14 b is fixed to the expanded bended section 1132 b. The expanded extending section 1131 b and the expanded bended section 1132 b have an included angle. In the present embodiment, the expanded extending section 1131 b is substantially perpendicular to the expanded bended section 1132 b. As shown, an expanded extending direction D5 b of the expanded extending section 1131 b is perpendicular to an expanded bended direction D6 b of the expanded bended section 1132 b.

The expanded combing and pulling base 14 b and the expanded combing and pulling structure 15 b are identical to the combing and pulling base 12 b and the combing and pulling structure 13 b respectively. The expanded combing and pulling base 14 b has an expanded base outer edge part (not labelled in the figure due to drawing limitations, but has a relationship to the expanded combing and pulling base 14 b identical to that between the base outer edge part 122 b and the combing and pulling base 12 b, i.e. located at the outer edge of the expanded combing and pulling base 14 b). The expanded combing and pulling structure 15 b is protruded from the expanded base outer edge part of the expanded combing and pulling base 14 b.

The expanded combing and pulling base 14 b has an expanded base width, which is smaller than a base width of the combing and pulling base 12 b. Thus, in compared with the combing and pulling range of the combing and pulling structure 13 b, the expanded combing and pulling structure 15 b has a smaller combing and pulling range, and thus the dentist may choose the combing and pulling structure 13 b or the expanded combing and pulling structure 15 b to do the combing and pulling operation based on the variation of conditions.

The periosteal elevator having a tissue combing and pulling structure 1 b provided in the present embodiment can be used to replace the periosteal elevator having a tissue combing and pulling structure 1 used in FIG. 7 and FIG. 8 for doing the identical operations and also showing the function as shown in FIG. 9. The operations and the function are identical to the previous embodiment, and thus are not repeated here.

It should be noted that, the periosteal elevator having a tissue combing and pulling structure 1 b provided in the present embodiment has the features of the connection part 112 b having the extending section 1121 b and the bended section 1122 b and the bended direction D4 b substantially perpendicular to the second extending direction D2 b. Thus, the combing and pulling base 12 can be regarded as being bended to the left or the right, which is more suitable to the operations applied to the gum at the lingual side of the posterior teeth at the two sides of the jaw. To be more precise, it is more suitable to be applied to the muscle layer under the gum at the lingual side of the posterior teeth.

Finally, please refer to FIG. 15 to FIG. 16A, wherein FIG. 15 is a perspective view showing a periosteal elevator having a tissue combing and pulling structure provided in accordance with a fourth embodiment of the present invention; FIG. 16 is a front view of the periosteal elevator having a tissue combing and pulling structure provided in accordance with the fourth embodiment of the present invention; and FIG. 16A is an enlarged view showing the region E of FIG. 16. As shown, the periosteal elevator having a tissue combing and pulling structure 1 c comprises a bar 11 c, a combing and pulling base 12 c, a plurality of combing and pulling structure 13 c (only one of them is labelled), an expanded combing and pulling base 14 c, and a plurality of expanded combing and pulling structures 15 c (only one of them is labelled).

The bar 11 c has a holder 111 c, a connection part 112 c, and an expanded connection part 113 c. The holder 111 c is utilized for being held by the dentist. One end of the holder 111 c is connected to the connection part 112 c and the other end is connected to the expanded connection part 113 c. The holder 111 c can be made of slip-resistant materials such as rubber, to prevent the precision of the operation from being affected by the wet holder due to the moisture from the mouth of the patient dentist, the blood or saliva on the gloves of the dentist. The bar 11 c can be of a shape of a cylinder, a prism, or a combination thereof, but a certain length is needed to facilitate the operation of combing and pulling the subcutaneous fibers at different locations in the mouth. The holder 111 c is extended along a first extending direction D1 c, the connection part 112 c is extended along a second extending direction D2 c, and the second extending direction D2 c is parallel to the first extending direction D1 c.

The combing and pulling base 12 c is fixed to the connection part 112 c of the bar 11 c and has a base outer edge pat (not shown). In the present embodiment, the combing and pulling base 12 c is a plate-shaped base. The base outer edge part comprises a straight outer edge part. The base outer edge part can be the straight outer edge part as a whole, or have a large portion thereof as the straight outer edge part and two chamfers at the two ends to prevent the damage to the patient caused by the sharp structure. The combing and pulling structure 13 c is connected to the base outer edge part and protruded from the base outer edge part along a protruding direction D3 c by a protruding length. Considering the thickness of the subcutaneous fibrous tissue, it is preferred to have a protruding length ranged between 0.5 mm to 1.5 mm. The expanded combing and pulling base 14 c is fixed to the expanded connection part 113 c. The expanded combing and pulling structure 15 c is protruded from the expanded combing and pulling base 14 c.

In the present embodiment, the protruding direction D3 c and the second extending direction have an included angle, which is ranged between 10 degrees to 90 degrees. That is, the combing and pulling base 12 c can be regarded as being slightly bended forward.

In addition, the expanded connection part 113 c has an expanded extending section 1131 c and an expanded bended section 1132 c. The expanded extending section 1131 c is connected to the holder 111 c, and the expanded bended section 1132 c is connected to the expanded extending section 1131 c. The expanded combing and pulling base 14 c is fixed to the expanded bended section 1132 c. The expanded extending section 1131 c and the expanded bended section 1132 c have an included angle. The included angle defined by the expanded extending section 1131 c and the expanded bended section 1132 c can be different from the included angle defined by the protruding direction D3 c and the second extending direction D2 c, so as to increase the range capable to be combed and pulled by the periosteal elevator having a tissue combing and pulling structure 1 a 1 c provided in the present embodiment.

The expanded combing and pulling base 14 c and the expanded combing and pulling structure 15 c are identical to the combing and pulling base 12 c and the combing and pulling structure 13 c respectively. The expanded combing and pulling base 14 c has an expanded base outer edge part (not labelled in the figure due to drawing limitations, but has a relationship to the expanded combing and pulling base 14 c identical to that between the base outer edge part 122 c and the combing and pulling base 12 c, i.e. located at the outer edge of the expanded combing and pulling base 14 c). The expanded combing and pulling structure 15 c is protruded from the expanded base outer edge part of the expanded combing and pulling base 14 c.

The expanded combing and pulling base 14 c has an expanded base width, which is smaller than a base width of the combing and pulling base 12 c. Thus, in compared with the combing and pulling range of the combing and pulling structure 13 c, the expanded combing and pulling structure 15 c has a smaller combing and pulling range, and thus the dentist may choose the combing and pulling structure 13 c or the expanded combing and pulling structure 15 c to do the combing and pulling operation based on the variation of conditions.

The periosteal elevator having a tissue combing and pulling structure 1 c provided in the present embodiment can be used to replace the periosteal elevator having a tissue combing and pulling structure 1 used in FIG. 7 and FIG. 8 for doing the identical operations and also showing the function as shown in FIG. 9. The operations and the function are identical to the previous embodiment, and thus are not repeated here.

Preferably, because the combing and pulling base 12 c in the present embodiment is slightly bended forward, the periosteal elevator having a tissue combing and pulling structure 1 c is more suitable to the gum of outer side of the front teeth.

In conclusion, because the periosteal elevator having a tissue combing and pulling structure provided in the present invention is capable to comb and pull the muscle fiber or the periosteum by forming a cut or even without any cut so as to stretch the muscle fiber or the periosteum to cause the effect of stretching the subcutaneous fibrous tissue. Thus, in compared with the conventional technology, which needs to form a plurality of cuts on the internal surface of the subcutaneous fibrous tissues, and the number of the cuts and the depth thereof depend on the length to be stretched. A greater number or a greater depth of the cuts is capable to enhance the length of the subcutaneous fibrous tissue capable to be stretched, but may also enhance the possibility of forming an additional wound on the subcutaneous fibrous tissue, which may cause swelling or infection of the wound and further extend the post-operative recovery time period.

In addition, the periosteal elevator having a tissue combing and pulling structure provided in the present invention not only has the function of elevating the periosteum from the alveolar bone but also has the functions such as combing and pulling the subcutaneous fibrous tissues, filling the bone powder, separating the subcutaneous fibrous tissues, and breaking the tendon with different orientations. Thus, in compared with the periosteal elevator of the conventional technology, which can only perform one single function, the periosteal elevator with a tissue combing and pulling structure provided in the present invention is capable to perform multiple functions and thus is more convenient for the dentist to use. Thereby, the dentist does not need to change the surgical instruments frequently and thus the operation time can be shortened.

While the present invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be without departing from the spirit and scope of the present invention. 

What is claimed is:
 1. A periosteal elevator having a tissue combing and pulling structure, comprising: a bar, having a holder and a connection part, wherein the holder is utilized for being held by an operation executer, and the connection part is connected to the holder; a combing and pulling base, fixed to the connection part, and having a base outer edge part; and a plurality of combing and pulling structures, protruded opposite to the bar from the base outer edge part, for combing and pulling a subcutaneous fibrous tissue when the subcutaneous fibrous tissue is cut and elevated from an alveolar bone.
 2. The periosteal elevator having a tissue combing and pulling structure of claim 1, wherein the combing and pulling base is a spoon-shaped base.
 3. The periosteal elevator having a tissue combing and pulling structure of claim 2, wherein the combing and pulling base has a base trench.
 4. The periosteal elevator having a tissue combing and pulling structure of claim 2, wherein the base outer edge part is a curved outer edge part.
 5. The periosteal elevator having a tissue combing and pulling structure of claim 1, wherein the combing and pulling base is a plate-shaped base.
 6. The periosteal elevator having a tissue combing and pulling structure of claim 5, wherein the base outer edge part comprises a straight outer edge part.
 7. The periosteal elevator having a tissue combing and pulling structure of claim 5, wherein each of the combing and pulling structures is extended along a protruding direction, the holder is extended along a first extending direction, and the protruding direction is substantially parallel to the first extending direction.
 8. The periosteal elevator having a tissue combing and pulling structure of claim 5, wherein each of the combing and pulling structures is extended along a protruding direction, the holder is extended along a first extending direction, an included angle is formed between the protruding direction and the first extending direction, and the included angle is ranged between 10 degrees to 90 degrees.
 9. The periosteal elevator having a tissue combing and pulling structure of claim 6, wherein the combing and pulling structures are linearly aligned at the base outer edge part.
 10. The periosteal elevator having a tissue combing and pulling structure of claim 1, wherein the combing and pulling structures are equally spaced.
 11. The periosteal elevator having a tissue combing and pulling structure of claim 1, wherein each of the combing and pulling structures is protruded from the base outer edge part by a protruding length, and the protruding length is ranged between 0.5 mm to 1.5 mm.
 12. The periosteal elevator having a tissue combing and pulling structure of claim 1, wherein the holder is extended along a first extending direction, the connection part is extended along a second extending direction, and the first extending direction is substantially parallel to the second extending direction.
 13. The periosteal elevator having a tissue combing and pulling structure of claim 1, wherein the holder is extended along a first extending direction, the connection part is extended along a second extending direction, and the first extending direction is substantially perpendicular to the second extending direction.
 14. The periosteal elevator having a tissue combing and pulling structure of claim 1, wherein the connection part has an extending section and a bended section, the extending section is extended along a second extending direction, the bended section is extended along a bended direction, and the bended direction is substantially perpendicular to the second extending direction.
 15. The periosteal elevator having a tissue combing and pulling structure of claim 14, wherein the holder is extended along a first extending direction, and the first extending direction is substantially parallel to the second extending direction.
 16. The periosteal elevator having a tissue combing and pulling structure of claim 1, wherein the bar further comprises an expanded connection part, and the expanded connection part is connected to an end of the holder opposite to the connection part.
 17. The periosteal elevator having a tissue combing and pulling structure of claim 16, further comprising: an expanded combing and pulling base, fixed to the expanded connection part, and having an expanded base outer edge part; and a plurality of expanded combing and pulling structures, protruded from the expanded base outer edge part, for combing and pulling the subcutaneous fibrous tissue. 